DE2413825C2 - Process for the preparation of (hydroxymethyl) -alkylphosphines - Google Patents
Process for the preparation of (hydroxymethyl) -alkylphosphinesInfo
- Publication number
- DE2413825C2 DE2413825C2 DE2413825A DE2413825A DE2413825C2 DE 2413825 C2 DE2413825 C2 DE 2413825C2 DE 2413825 A DE2413825 A DE 2413825A DE 2413825 A DE2413825 A DE 2413825A DE 2413825 C2 DE2413825 C2 DE 2413825C2
- Authority
- DE
- Germany
- Prior art keywords
- reaction
- hydroxymethyl
- alkylphosphines
- paraformaldehyde
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 25
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000003054 catalyst Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 14
- 229920002866 paraformaldehyde Polymers 0.000 claims description 14
- BGJSXRVXTHVRSN-UHFFFAOYSA-N 1,3,5-trioxane Chemical compound C1OCOCO1 BGJSXRVXTHVRSN-UHFFFAOYSA-N 0.000 claims description 5
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 229910052793 cadmium Inorganic materials 0.000 claims description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims description 2
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 claims description 2
- 150000004714 phosphonium salts Chemical class 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- 239000003495 polar organic solvent Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 21
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- SAWKFRBJGLMMES-UHFFFAOYSA-N methylphosphine Chemical compound PC SAWKFRBJGLMMES-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- WFFKVKZKYNJGCV-UHFFFAOYSA-N [hydroxymethyl(methyl)phosphanyl]methanol Chemical compound OCP(C)CO WFFKVKZKYNJGCV-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- YOTZYFSGUCFUKA-UHFFFAOYSA-N dimethylphosphine Chemical compound CPC YOTZYFSGUCFUKA-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 150000003003 phosphines Chemical group 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 description 2
- LRUAEICXNJUARS-UHFFFAOYSA-N dimethylphosphanylmethanol Chemical compound CP(C)CO LRUAEICXNJUARS-UHFFFAOYSA-N 0.000 description 2
- JLHMVTORNNQCRM-UHFFFAOYSA-N ethylphosphine Chemical compound CCP JLHMVTORNNQCRM-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- XIQJYDMYHYTXRK-UHFFFAOYSA-N OC[PH2]=O Chemical compound OC[PH2]=O XIQJYDMYHYTXRK-UHFFFAOYSA-N 0.000 description 1
- XWSQLOKESIKBIA-UHFFFAOYSA-N [hydroxymethyl(methyl)phosphoryl]methanol Chemical compound OCP(=O)(C)CO XWSQLOKESIKBIA-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- -1 aromatic nitriles Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000003857 carboxamides Chemical class 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000004122 cyclic group Chemical class 0.000 description 1
- VZZJVOCVAZHETD-UHFFFAOYSA-N diethylphosphane Chemical compound CCPCC VZZJVOCVAZHETD-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- JLUGNOKOIZFOIU-UHFFFAOYSA-N ethylphosphanylmethanol Chemical compound CCPCO JLUGNOKOIZFOIU-UHFFFAOYSA-N 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 150000003948 formamides Chemical class 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0267—Phosphines or phosphonium compounds, i.e. phosphorus bonded to at least one carbon atom, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, the other atoms bonded to phosphorus being either carbon or hydrogen
- B01J31/0268—Phosphonium compounds, i.e. phosphine with an additional hydrogen or carbon atom bonded to phosphorous so as to result in a formal positive charge on phosphorous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0257—Phosphorus acids or phosphorus acid esters
- B01J31/0258—Phosphoric acid mono-, di- or triesters ((RO)(R'O)2P=O), i.e. R= C, R'= C, H
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0257—Phosphorus acids or phosphorus acid esters
- B01J31/0259—Phosphorus acids or phosphorus acid esters comprising phosphorous acid (-ester) groups ((RO)P(OR')2) or the isomeric phosphonic acid (-ester) groups (R(R'O)2P=O), i.e. R= C, R'= C, H
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/50—Organo-phosphines
- C07F9/5004—Acyclic saturated phosphines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
- B01J2231/42—Catalytic cross-coupling, i.e. connection of previously not connected C-atoms or C- and X-atoms without rearrangement
- B01J2231/4277—C-X Cross-coupling, e.g. nucleophilic aromatic amination, alkoxylation or analogues
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/822—Rhodium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/828—Platinum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/847—Nickel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
- B01J27/10—Chlorides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/128—Halogens; Compounds thereof with iron group metals or platinum group metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
JOJO
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von (Hydroxymethyl)-alkylphosphinen der al'izemeinen FormelThe present invention relates to a process for the preparation of (hydroxymethyl) -alkylphosphines al'izemeinen formula
RnP(CH2OH)^n.R n P (CH 2 OH) ^ n .
worin η = I oder 2 sein kann und R gleiche oder verschiedene, nichtsubstituierte Alkylreste mit 1 oder 2 C-Atomen bedeutet, durch Reaktion der entsprechenden Mono- oder Di-. -alkylphosphlne mit Formaldehyd. Paraformaldehyd oder Trioxan.where η = I or 2 and R denotes identical or different, unsubstituted alkyl radicals having 1 or 2 carbon atoms, by reaction of the corresponding mono- or di-. -alkylphosphines with formaldehyde. Paraformaldehyde or trioxane.
Bekanntlich lassen sich (Hydroxymethyl)-alkylphosphine durch Umsetzung von primären und sekundären Phosphinen mit Paraformaldehyd unter Druck im Autoklaven bei Temperaturen von 60 bis 90° C herstellen |F. I. Grlnsteln, A.B. Bruker und L. Z. Soborovskii. Doklady Adk. USSR 139. 1359 (1961): SU-PS 1 38 617 11960); Zh. Obshch. KhIm. 36. (2) 302. 1966].It is known that (hydroxymethyl) alkylphosphines can be used by reacting primary and secondary phosphines with paraformaldehyde under pressure in the Create autoclaves at temperatures of 60 to 90 ° C | F. I. Grinnsteln, A.B. Bruker and L. Z. Soborovskii. Doklady Adk. USSR 139.1359 (1961): SU-PS 1 38 617 11960); Zh. Obshch. KhIm. 36. (2) 302. 1966].
Diese Verfahrensweise besitzt mehrere Nachtelle. EInmal tritt bei erhöhten Temperaturen und bei Druckerhöhung die Buckler-Trlpett-Umlagerung zu den isomeren •Mkylphosphlnoxlden verstärkt auf, die bei der erforderlichen Aufarbeitung des Reaktionsproduktes durch Vakuumdestillation nicht vollständig abgetrennt werden können [Il Hellmann. J. Bader. H. Blrkner und O Schumacher. Lieb. Ann. 659. 49 (1962): S. A. Buckler. J Anier. Chcm Soc. 82. 4215 (I960)]. Außerdem stellt die Druckreaktion wegen der extremen Giftigkeit der Alkylphosphlne und deren Brennbarkelt an Luft sowie wegen der aus Sicherheitsgründen begrenzten Ansatz· (so mengen und dadurch bedingten geringen Raum/.elt- \11sbeuten -Mn In technischem Maßstab nur wenig geeignetes VerUhren dar.This procedure has several drawbacks. Once occurs at elevated temperatures and when the pressure increases the Buckler-Trlpett rearrangement to the isomeric • Mkylphosphlnoxlden intensified, which in the required Working up of the reaction product cannot be completely separated off by vacuum distillation can [Il Hellmann. J. Bader. H. Blrkner and O Schumacher. Dear. Ann. 659.49 (1962): S. A. Buckler. J Anier. Chcm Soc. 82, 4215 (1960)]. It also provides the pressure reaction because of the extreme toxicity of the alkylphosphines and their combustibility in air as well as because of the limited approach for security reasons (see above quantities and the resulting small space / .elt- \ 11sbeuten -Mn Not very suitable on an industrial scale VerUhren dar.
•\iK-h gemäß der I1S-PS 36 60 495 werden Hydroxy metin !phosphine durch l'mset/ung von wäßrigen Form- n~> .tklehullösungen mit l'hosphorw.i.s.serstofl erhalten, wobei man ledoch. wenn hohe Ausbeuten erzielt werden sollen. In Gegenwar! von Tetrakls-(hydmxymethyl)-phosphoniumchlorld als Katalysator und außerdem unter Druck arbeiten muß, was mit den oben bereits erwähnten Nachteilen verbunden ist.• \ iK-h according to the I 1 S-PS 36 60 495 be hydroxyl Metin! Phosphine by l'mset / ung n aqueous form ~> .tklehullösungen obtained with l'hosphorw.isserstofl to give ledoch. when high yields are to be achieved. In the present! of Tetrakls- (hydmxymethyl) -phosphoniumchlorld as a catalyst and also has to work under pressure, which is associated with the disadvantages already mentioned above.
Ein zusätzlich bei der Verwendung wäßriger Formaldehyd-Lösungen auftretender Nachteil ist die Bildung des jeweiligen Hydroxymethylphosphlnoxids, welches, wie aus der DE-OS 19 30 521 bekannt ist, bevorzugt unter Druck durch Reaktion mit Wasser unter Formaldehyd-Katalyse gebildet wird.An additional disadvantage when using aqueous formaldehyde solutions is the formation of the respective hydroxymethylphosphine oxide, which, as is known from DE-OS 19 30 521, is preferred is formed under pressure by reaction with water with formaldehyde catalysis.
Es wurde nun überraschenderweise gefunden, daß man die eingangs genannten (Hydroxymethyl)-alkylphosphine in kontinuierlicher oder diskontinuierlicher Verfahrensweise drucklos, schnell und risikolos in quantitativer Ausbeute und praktisch frei von Nebenprodukten erhält, wenn man die an sich bekannte Umsetzung von Mono- oder Di-, -alkylphosphinen mit Formaldehyd. Paraformaldehyd oder Trioxan unter Inertgas in Gegenwart von polaren organischen Lösemitteln, die gegenüber dem Reaktionsprodukt inert sind, bei Atmosphärendruck und Temperaturen unterhalb 40c C durchführt und das Lösemittel anschließend abtrennt.It has now been found, surprisingly, that the (hydroxymethyl) alkylphosphines mentioned at the outset are obtained in a continuous or discontinuous procedure without pressure, quickly and without risk in quantitative yield and practically free of by-products if the known reaction of mono- or di-, -alkylphosphines with formaldehyde. Paraformaldehyde or trioxane is carried out under inert gas in the presence of polar organic solvents which are inert towards the reaction product at atmospheric pressure and temperatures below 40 ° C. and the solvent is then separated off.
Zweckmäßigerwelse verwendet man hierbei inerte Lösemittel mit einem Siedepunkt unter 12O3 C.It is advisable to use inert solvents with a boiling point below 12O 3 C.
Als Lösemittel eignen sich Alkohole, Glykole, Äther, alkylierte Formamide, aliphatische oder aromatische Nitrile, halogenierte aliphatische oder aromatische Kohlenwasserstoffe, cyclische und offenkettlge Sulfone, Carbonsäureanhydride oder -ester. N-alkylierte Carbonsäureamide, wie z. B. Methanol. Äthanol. Propanol, Isopropanol, Chloroform. Methylenchlorld. Methyl- oder Äthylacetat oder Gemische aus diesen Lösemitteln.Suitable solvents are alcohols, glycols, ethers, alkylated formamides, aliphatic or aromatic nitriles, halogenated aliphatic or aromatic Hydrocarbons, cyclic and open-chain sulfones, carboxylic acid anhydrides or esters. N-alkylated carboxamides, such as B. methanol. Ethanol. Propanol, isopropanol, chloroform. Methylene chloride. Methyl or Ethyl acetate or mixtures of these solvents.
Ferner hat sich gezeigt, daß sich die Reaktionszeiten wesentlich verkürzen lassen, wenn man zusätzlich einen Katalysator verwendet. Katalysatormengen von 100 ppm bis 1000 ppm bezogen auf die Fornialdehydmengen. sind in diesen Fällen ausreichend.It has also been shown that the response times Can be shortened significantly if you also use a catalyst. Catalyst levels of 100 ppm up to 1000 ppm based on the amount of formaldehyde. are sufficient in these cases.
Als Katalysatoren eignen sich sowohl Metallsalze der achten Gruppe des Periodischen Systems der Elemente oder Cadmium als auch Phosphate. Phosphite. Hypophosphite oder Phosphoniumverbindungen des Typs (RiR2P)X bzw. (RR',P)X, wobei R und R' CII1 und CH1OH und X = Cl . Br . J . CH1COO oder Η,ΡΟ, bedeutet oder Na(PH,MCO), oder Cr(PH,MCO)4.Both metal salts of the eighth group of the Periodic Table of the Elements or cadmium and phosphates are suitable as catalysts. Phosphites. Hypophosphites or phosphonium compounds of the type (RiR 2 P) X or (RR ', P) X, where R and R' are CII 1 and CH 1 OH and X = Cl. Br. J. CH 1 COO or Η, ΡΟ, means or Na (PH, MCO), or Cr (PH, MCO) 4 .
Von den genannten Metallsalzen werden Insbesondere die des Platins. Rhodiums. Cadmiums oder Nickels, gegebenenfalls In komplexer Form, und /war vorzugsweise die Chloride, eingesetzt.Of the metal salts mentioned, in particular those of platinum. Rhodiums. Cadmium or nickel, possibly in complex form, and / was preferred the chlorides, used.
Es empfiehlt sich, daß man unter Schutzgasatmosphäre arbeitet, wobei als Schul/gas Stickstoff. Argon oder Kohlendioxid dienen kann.It is advisable to use a protective gas atmosphere works, taking as school / gas nitrogen. Argon or carbon dioxide can serve.
Kontinuierlich läßt sich das erfindungsgemäßc Verfahren am besten In einem Reaktor durchführen, der durch eine flüsslgkeit.sdurchläs.slge Trennwand wie 7. B. Filterplatte. Frltte oder Diaphragma unterteilt und mit einer vorgelegten Lösung des herzustellenden (HydroxymethyO-phosphlns In dem organischen Lösungsmittel gefüllt Ist.Continuously, the method erfindungsgemäßc best can be carried out in a reactor by a partition wall as flüsslgkeit.sdurchläs.slge 7. B. filter plate. The cold or diaphragm is subdivided and filled with a prepared solution of the (HydroxymethyO-phosphine in the organic solvent.
Im ersten Teil des Reaktors wird dann In der genannten Lösung Paraformaldehyd suspendiert und unter intensivem Rühren in diese Suspension gleichzeitig das jeweilige Mono- oder Di . -alkylphosphln. Päfäfoffna! dchyd und Lösemittel kontinuierlich und in soldir-Mengen eingetragen, die den ncugcbikloten Mengen an (I lydrnxy methyl l-phosph InIiKu ng entsprechen ά ■·!( Iv aus dem /weiten fell des Reaktor·· ehenlalls kontinuierlich ihge/Ogcn werden. Aus diesen lösungen wird anschließend da-> I ö-icmlttcl abüetreii'i! und in den ersten Teil des Reaktor« zurückgeführt Die Lmset/ungIn the first part of the reactor is then In the mentioned Suspended solution paraformaldehyde and, with vigorous stirring, in this suspension at the same time respective mono or tue. -alkylphosphines. Päfäfoffna! dchyd and solvent continuously and in soldir quantities entered which the ncugcbikloten amounts of (I lydrnxy methyl l-phosph InIiKu ng correspond to ά ■ ·! (Iv from the / wide area of the reactor ·· ehenlalls continuously ihge / Ogcn will be. These solutions become then da-> I ö-icmlttcl abüetreii'i! and in the first part of the reactor «returned The Lmset / ung
wird vorzugsweise bei Temperaturen von 30 bis 35° C durchgeführt.is preferably used at temperatures of 30 to 35 ° C carried out.
Das erflndungsgemäße Verfahren iiefert je nach Ausfuhrungsform bis zu 80<fclge Lösungen der (HydroxymethyD-alkylphosphine, die durch Entfernen des jeweiligen Lösemittels im Vakuum leicht In 100%iger Form erhalten werden können.The method according to the invention delivers depending on the embodiment up to 80% solutions of (hydroxymethyl-alkylphosphine, which by removing the respective solvent in vacuo easily in 100% form can be obtained.
Die Verwendung von Katalysatoren verkürzt die Reaktionszeiten bis zu 30%.The use of catalysts shortens the reaction times by up to 30%.
Bei diskontinuierlicher Verfahrensweise wird Paraformaldehyd bzw. Formaldehyd oder Trioxan im organischen Lösemittel vorgelegt und vorzugsweise unter Schutzgasatmosphäre und intensiver Durchmischung bei 30 bis 35° C das als Ausgangsprodukt verwendete Phosphin eingeleitet. Flüssige Phosphine werden entweder verdünnt oder unverdünnt zugetropft oder bei ausreichender Flüchtigkeit im Inertgasstrom zugeführt. Die Abführung der Reaktionswärme erfolgt durch Außenkühlung. Gegebenenfalls wird noch Katalysator zugesetzt. Die Umsetzung Ist beendet, wenn der Aldehyd quantitativ verbraucht Ist. Man erhält eine klare Lösung, aus der nach Entfernen des Lösemittels im Vakuum in quantitativer Ausbeute das jeweilige (Hydroxymethyl)-alkylphosphln erhalten wird.In the discontinuous procedure, paraformaldehyde or formaldehyde or trioxane is organic Solvent presented and preferably under a protective gas atmosphere and intensive mixing 30 to 35 ° C introduced the phosphine used as the starting product. Liquid phosphines will either diluted or undiluted, added dropwise or, if the volatility is sufficient, fed in an inert gas stream. the The heat of reaction is dissipated by external cooling. If necessary, a catalyst is also added. The reaction is complete when the aldehyde has been used up quantitatively. A clear solution is obtained from which, after removal of the solvent in vacuo, the respective (hydroxymethyl) -alkylphosphine is obtained in quantitative yield is obtained.
Die Vorteile des erfindungsgemäßen Verfahrens gegenüber den bekannten Verfahrensweisen liegen neben der einfachen und praktisch gefahrlosen Durchführbarkeit, vor allem in den hohen Ausbeuten, nahezu quantitativen Umsätzen, der hohen Reinheit und Einheitlichkeit der Reaktionsprodukte, sowie In der Tatsache, daß es eine kontinuierliche Arbeltsweise erlaubt.The advantages of the method according to the invention over the known methods are adjacent the simple and practically safe feasibility, especially in the high yields, almost quantitative Conversions, the high purity and uniformity of the reaction products, as well as In the fact that it allows continuous operation.
Die nach dem ertindungsgemäßen Verfahren hergestellten Phosphine stellen wer,volle r.aktive Zwischenprodukte für die verschiedene! tigsten Synthesen dar. Insbesondere für Synthesen von Plan; nschutzmitteln. Arzneimitteln und Textilhilfsmitteln. Sie sind außerdem als Aktlvatornn bei der Herstellung flammfester Polyurethane von Bedeutung.Those produced by the process according to the invention Phosphines represent who, full r.active intermediates for the different! most important syntheses. Especially for syntheses by Plan; protection agents. Medicines and textile auxiliaries. They are also used as actuators in the manufacture of flame-retardant polyurethanes significant.
Die folgenden Beispiele sollen das erflndungsgemäße Verfahren näher erläutern.The following examples are intended to explain the process according to the invention in more detail.
Beispiel 1
(Diskontinuierliche Verfahrensweise)example 1
(Discontinuous procedure)
In einem 1 I Reaktlonsgefäß werden 240 g (8 Mol) Paraformaldehyd In 287 g Methanol unter Stickstoff suspendiert. Der Reaktor Ist ausgerüstet mit einem Intenslvrührer. einer Temperaturmessung, Gaselnleltungs- und Ableitungsrohr, Rückflußkühler und einer Kühlschlange. Der Apparatur ist eine auf -78 C gekühlte Kühlfalle nachgeschaltet. Aus Sicherheitsgründen steht die gesamte Apparatur In Verbindung mit einem Abgas-Verbrennungssystem. In a 1 l reaction vessel, 240 g (8 mol) of paraformaldehyde are suspended in 287 g of methanol under nitrogen. The reactor is equipped with an intensive stirrer. a temperature measurement, gas supply and discharge pipe, reflux condenser and a cooling coil. A cold trap cooled to -78 ° C. is connected downstream of the apparatus. For security reasons, the entire apparatus in connection with an exhaust gas incineration system.
Es werden 194 g Methylphosph'n unter intensiver Durchmischung eingeleitet. Die Temperatur wird durch Kühlung auf 30° C gehalten. Nach 4 Stunden erhält man eine klare, 60%lge methanolische Lösung von BIs-(hydroxymethyl)-methylphosphin, aus der durch Entfernen des Lösemittels Im Vakuum bei Temperaturen bis 30= C leicht das reine Phosphin erhalten wird. Das .' ösemittel wird quantitativ zurückgewonnen und kann erneut eingesetzt werden. Man erhält 431 g 100%iges BIs-(hydroxymethyl)-meihylphosphin, eine farblose, im Vakuum destilllerbare Flüssigkeit, Kp4mbjr 89 bis 90° C, nf 1.5328.194 g of methylphosphine are introduced with thorough mixing. The temperature is kept at 30.degree. C. by cooling. After 4 hours to obtain a clear, 60% lge methanolic solution of bis (hydroxymethyl) methylphosphine, the pure phosphine is easily obtained by removing the solvent under vacuum at temperatures up to 30 C = from. That .' solvent is recovered quantitatively and can be used again. 431 g of 100% bis (hydroxymethyl) methylphosphine are obtained, a colorless liquid which can be distilled in vacuo, boiling point 4 m 89 to 90 ° C., nf 1.5328.
Das nach vorliegendem Verfahren hergestellte Bis-(hyaroxymethyl)-methylphosphin entspricht vollständig einem nach dem Druckverfahren von E. I. Grinstein hergestellten Vergleichsprodukt in seinem IR- und NMR-Spektren. The bis (hyaroxymethyl) methylphosphine produced by the present process corresponds completely to one produced by E. I. Grinstein's printing process Comparative product in its IR and NMR spectra.
In der nachgeschalteten Kühlfalle befinden sich 2 g nicht umgesetztes Methylphosphin, welches erneut eingesetzt werden kann. Der Umsatz, bezogen auf Methyiphosphin, beträgt 99%.In the downstream cold trap there are 2 g of unreacted methylphosphine, which is used again can be. The conversion, based on methylphosphine, is 99%.
Gehall: (jodometr. Titration Im sauren Medium) 100% Analyse: C)H9O2PGehall: (iodometric titration in acidic medium) 100% analysis: C) H 9 O 2 P
berechnet: C 33,3%; H 8,3%; P 2?,1%.
gefunden: C 33,5%; H 8,5%; P 28,4%.calculated: C 33.3%; H 8.3%; P 2?, 1%.
found: C 33.5%; H 8.5%; P 28.4%.
Die Wiederholung des Versuches unter Einsatz des Methanols durch Äthanol sowie durch Methylenchlorid führte zu gleichartigen Ergebnissen. Auch der Ersatz des Paraformaldehyds durch Formaldehyd (40%ige methanolische Lösung) bzw. durch Trioxan führt zum gleichen Produkt.The repetition of the experiment using methanol through ethanol and methylene chloride led to similar results. The replacement of paraformaldehyde with formaldehyde (40% methanolic Solution) or trioxane leads to the same product.
Es wird wie im Beispiel 1 beschrieben verfahren, nur wird der Reaktionsmischung wasserfreies Cadmiumchlorld (0.01%) als Katalysator zugesetzt. Die Reaktionszeit verkürzt sich auf 3 Stunden, was einer Zeitersparnis von 25% entspricht. Das erhaltene Bis-(hydroxymethyl)-methylphosphln entspricht dem nach Beispiel 1 hergestellten Produkt. Die Ausbeute beträgt praktisch 100%. Das Produkt enthält keine Verunreinigungen.The procedure is as described in Example 1, except that the reaction mixture becomes anhydrous cadmium chloride (0.01%) added as a catalyst. The response time is reduced to 3 hours, which is a time saving of 25% corresponds. The bis (hydroxymethyl) methylphosphine obtained corresponds to that prepared according to Example 1 Product. The yield is practically 100%. The product does not contain any impurities.
In der nachfolgenden Tabelle sind weitere Katalysatoren, die Im erfindungsgemäßen Verfahren eingesetzt werden können, und die jeweiligen Reaktionszeiten und prozentualen Reaktionszeit-Verkürzungen zusammengestellt. Die Im Beispiel I angeführte Ausführungsform des eifindungsgemäßen Verfahrens dient als Standard.The table below shows other catalysts which can be used in the process according to the invention, and the respective reaction times and percentages Reduced response times compiled. The embodiment of the cited in Example I A method according to the invention serves as a standard.
Katalysatormenge [ppmjAmount of catalyst [ppmj
ohne Katnlysator
Beispiel 1without a catalyst
example 1
I1ICl, Kl(Il)I 1 ICl, Kl (Il)
K7PiCl, lonK 7 PiCl, lon
NiCI .--0ONiCI .-- 0O
[(CIi .il'iCII OHi1ICI 10(10[(CIi .il'iCII OHi 1 ICI 10 (10
1(CH1IP(CII Olli,K I 5001 (CH 1 IP (CII Olli, KI 500
liCHiil'ICIIjOIDjlCI 100liCHiil'ICIIjOIDjlCI 100
Rc.ikli(in-./eit-Vcrkür/ung Rc.ikli (in -. / Eit-Vcrkuri / ung
30.0
30.0
10.0
1XO
12.5
5.030.0
30.0
10.0
1 XO
12.5
5.0
(ppm]Catalyst
(ppm]
[hlResponse line
[St.
Verkürzung
[%]Reaction time-
Shortening
[%]
Unter den analogen Bedingungen von Beispiel 1 werden 126 g Dimethylphosphin mit 60 g Paraformaldehyd in 3 Stunden bei 20 bis 25° C umgesetzt. Nach dem Entfernen des Methanols im Vakuum erhält man 180 g (97,8% Ausbeute) (Hydroxymethyl)-dimethylphosphin. Der Umsatz an Dimethylphosphin beträgt 97,5%.Under the same conditions as in Example 1, 126 g of dimethylphosphine are mixed with 60 g of paraformaldehyde reacted in 3 hours at 20 to 25 ° C. After removing the methanol in vacuo, 180 g are obtained (97.8% yield) (hydroxymethyl) dimethylphosphine. The conversion of dimethylphosphine is 97.5%.
Gehalt: (jodometr. Titration im sauren Medium) 99%Content: (iodometric titration in an acidic medium) 99%
Analyse: CjH,OPAnalysis: CjH, OP
werden.will.
berechnet:
gefunden:calculated:
found:
C 39,1%;
C 39,4%;C 39.1%;
C 39.4%;
11 9,9 V,
H 10,2%;11 9.9 V,
H 10.2%;
P 33,7%.
P .»3,4%.P 33.7%.
P. »3.4%.
Das nach dem erfindungsgemäßen Verfahren hergestellte (Hydroxymethyl)-dimethylphosphin stellt eine farblose, im Vakuum destillierbare Flüssigkeit dar; KPi3.33mbar 50 bis 51" C, nf 1.5016. Es entspricht in seinen chemischen und physikalischen Eigenschaften vollständig einem nach dem Autoklav-Verfahren von E. 1. Grinstein hergestellten Vergleichsprodukt.The (hydroxymethyl) dimethylphosphine produced by the process according to the invention is a colorless liquid which can be distilled in vacuo; K Pi3.33mbar 50 to 51 "C, nf 1.5016. In its chemical and physical properties it corresponds completely to a comparative product manufactured by E. 1. Grinstein using the autoclave process.
Bei Verwendung der genannten Katalysatoren kann auch hier die Reaktionszeit je nach der verwandten Kitalysator-Menge bis zu 30% reduziert werden.When using the catalysts mentioned, the reaction time can also vary depending on the amount of catalyst used can be reduced by up to 30%.
Wie in Beispiel 1 beschrieben werden 64 g Äthylphosphin mit 60 g Paraformaldehyd in 3 Stunden bei 30 bis
35° C umgesetzt. Nach dem Entfernen des Methanols im Vakuum erhält man 122 g (100% Ausbeute bez. auf
Paraformaldehyd) Bls-(hydroxymethyl)-äthylphosphin. Der Umsatz an Diäthylphosphln beträgt 96,8%.
Gehalt: (jodometr. Titration in saurem Medium) 99%
Analyse: C4H11O2PAs described in Example 1, 64 g of ethylphosphine are reacted with 60 g of paraformaldehyde in 3 hours at 30 to 35 ° C. After removing the methanol in vacuo, 122 g (100% yield based on paraformaldehyde) of bls (hydroxymethyl) ethylphosphine are obtained. The diethylphosphine conversion is 96.8%.
Content: (iodometric titration in acidic medium) 99%
Analysis: C 4 H 11 O 2 P
berechnet:
gefunden:calculated:
found:
C 39,3%:
C 39,6%;C 39.3%:
C 39.6%;
H 9,0%;
H 9,.%\ H 9.0%;
H 9,.% \
P 25,4%.
P 25,5%.P 25.4%.
P 25.5%.
Das nach dem erfindungsgemäßen Verfahren hergestellte Bls-(hydroxymethyl)-äthylphosphln stellt eine farblose, Im Vakuum destillierbare Flüssigkeit dar; KPujmbar 81 bis 83° C, nft 1.5253. Es entspricht vollständig einem nach dem Autoklav-Verfahren von E. I Grinstein hergestellten Vergleichsprodukt.The Bls- (hydroxymethyl) -äthylphosphln produced by the process according to the invention is a colorless liquid which can be distilled in vacuo; KPujmbar 81 to 83 ° C, nft 1.5253. It corresponds completely to a comparative product manufactured by E. I Grinstein by the autoclave process.
Mit den erdindungsgemäßen Katalysatoren kann auch ">5
Beispiel 5
(kontinuierliche Verfahrensweise)With the catalysts according to the invention it is also possible to use "> 5 Example 5
(continuous process)
In einem etwa 80 cm langen kuhlbaren Doppelmantelreaktor mit einem Durchmesser von 8 cm, an dessen unterein Ende (ca. 3 cm über dem Boden) eine Filterplatte eingebaut ist, der mit Inte.i.ivrührer und Temperaturstutzen ausgerüstet ist und an d-ssen oberem Ende sich je eine Dosiervorrichtung für Methanol und Paraformaldehyd befindet, wird eine Suspension von Paraformaldehyd in Methanol gegeben. Durch ein Gaseinleitungsrohr werden im Gegenstrom von unten 22,4 l/h Methylphosphin (1 Mol/h) unter Inertgasatmosphäre (Stickstoff oder CO1) und Intensiver Durchmischung bei gleichzeitiger kontinuierlicher Zugabe von 60 g Paraformaldehyd pro Stunde (2 Mol/h) eingeleitet. Parallel dazu werden unterhalb der Filterplatte kontinuierlich 200 g/h der entstandenen klaren Lösung von Bis-(hydroxymethyO-methylphosphin in Methanol abgezogen und das Lösemittel in einer sich anschließenden Destillationsstufe kontinuierlich im Vakuum abgetrennt und zur Aufrechterhaltung konstanter stöchlometrischer Verhältnisse in den Reaktor zurückgeführt (ca. 92 g/h Methanol). In an approximately 80 cm long, coolable jacketed reactor with a diameter of 8 cm At the end of a metering device for methanol and paraformaldehyde, a suspension of paraformaldehyde in methanol is added. 22.4 l / h of methylphosphine (1 mol / h) are introduced through a gas inlet pipe in countercurrent from below under an inert gas atmosphere (nitrogen or CO 1 ) and intensive mixing with simultaneous continuous addition of 60 g of paraformaldehyde per hour (2 mol / h). In parallel, 200 g / h of the resulting clear solution of bis (hydroxymethyO-methylphosphine in methanol) are continuously drawn off below the filter plate and the solvent is continuously separated off in a vacuum in a subsequent distillation stage and returned to the reactor to maintain constant stoichlometric ratios (approx. 92 g / h methanol).
Die Reaktion wird unter SauerstoffausschlLß bei einer Temperatur < 40° C durchgeführt.The reaction is carried out with the exclusion of oxygen at a Temperature <40 ° C carried out.
Das erhaltene Bls-(hydroxymethyl)-methylphosphin wird in praktisch 100%lger Ausbeute erhalten. Das Produkt ist identisch mit dem Im Beispiel 1 beschriebenen und enthält kein Bis-(hydroxymtthyl)-methylphosphlnoxid. The resulting Bls- (hydroxymethyl) methylphosphine is obtained in practically 100% yield. The product is identical to that described in Example 1 and contains no bis (hydroxymethyl) methylphosphine oxide.
Bei der kontinuierlichen Verfahrensweise können beispielsweise anstelle des Methylphosphlns auch Dimethylphosphin und Äthylphosphin und anstelle von Methanol, Äthanol oder Methylenchlorid mit Erfolg eingesetzt werden. Zur Beschleunigung der Reaktion können auch bei dieser Verfahrenswelse die oben beschriebenen Katalysatoren eingesetzt werden. Die Raum-Zeit-Ausbeuten können dadurch um bis zu 20% gesteigert werden.In the continuous procedure, for example, dimethylphosphine can also be used instead of methylphosphine and ethylphosphine and can be used with success in place of methanol, ethanol or methylene chloride. To accelerate the reaction, the above-described catalysts can also be used in this process welfare can be used. The space-time yields can thereby be increased by up to 20%.
Claims (2)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2413825A DE2413825C2 (en) | 1974-03-22 | 1974-03-22 | Process for the preparation of (hydroxymethyl) -alkylphosphines |
GB1101275A GB1468491A (en) | 1974-03-22 | 1975-03-17 | Production of -hydroxymethyl-alkyl cycloalkyl and aralkyl phosphines |
US05/559,529 US4080384A (en) | 1974-03-22 | 1975-03-18 | Production of (hydroxymethyl)-alkyl, cycloalkyl and aralkylphosphines |
CA222,530A CA1045162A (en) | 1974-03-22 | 1975-03-19 | Production of (hydroxymethyl)-alkyl, cycloalkyl and aralkylphosphines |
IT48681/75A IT1032367B (en) | 1974-03-22 | 1975-03-20 | PROCEDURE FOR PRODUCING HYDROXIMETHYL ALCYL CYCLOALKYL AND ARALKYL PHOSPHINE |
CH366975A CH599236A5 (en) | 1974-03-22 | 1975-03-21 | |
FR7508981A FR2264816B1 (en) | 1974-03-22 | 1975-03-21 | |
BE154575A BE826972A (en) | 1974-03-22 | 1975-03-21 | PROCESS FOR THE PREPARATION OF HYDROXYMETHYL-ALKYL -, - CYCLOALKYL- AND - ARYLALKYL-PHOSPHINES |
NL7503430A NL7503430A (en) | 1974-03-22 | 1975-03-21 | PROCESS FOR THE PREPARATION OF (HYDROXYMETHYL) -ALKYL, -CYCLOALKYL- AND -ARALKYL PHOSPHINS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2413825A DE2413825C2 (en) | 1974-03-22 | 1974-03-22 | Process for the preparation of (hydroxymethyl) -alkylphosphines |
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DE2413825A1 DE2413825A1 (en) | 1975-10-02 |
DE2413825C2 true DE2413825C2 (en) | 1983-03-03 |
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DE2413825A Expired DE2413825C2 (en) | 1974-03-22 | 1974-03-22 | Process for the preparation of (hydroxymethyl) -alkylphosphines |
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US (1) | US4080384A (en) |
BE (1) | BE826972A (en) |
CA (1) | CA1045162A (en) |
CH (1) | CH599236A5 (en) |
DE (1) | DE2413825C2 (en) |
FR (1) | FR2264816B1 (en) |
GB (1) | GB1468491A (en) |
IT (1) | IT1032367B (en) |
NL (1) | NL7503430A (en) |
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US2916346A (en) * | 1953-02-25 | 1959-12-08 | Rauma Repola Oy | Method for chemical treatment of suspended solids |
BE564200A (en) * | 1957-01-23 | |||
US2999882A (en) * | 1959-08-31 | 1961-09-12 | American Cyanamid Co | Method of preparing secondary phosphines |
US3145227A (en) * | 1961-06-14 | 1964-08-18 | American Cyanamid Co | Organic phosphine oxides and methods of preparing same |
US3267149A (en) * | 1962-07-13 | 1966-08-16 | Monsanto Res Corp | 4-hydroxybutyl phosphorus compounds |
US3243450A (en) * | 1963-12-26 | 1966-03-29 | American Cyanamid Co | Hydroxymethylphosphines and process for preparing the same |
US3660495A (en) * | 1969-12-10 | 1972-05-02 | Hooker Chemical Corp | Process for preparing hydroxymethylated phosphines |
US3729516A (en) * | 1970-11-27 | 1973-04-24 | American Cyanamid Co | Process for tris (hydroxymethyl) phosphine |
US3704325A (en) * | 1970-11-27 | 1972-11-28 | American Cyanamid Co | Process for tris (hydroxymethyl) phosphine by use of high boiling solvent |
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1974
- 1974-03-22 DE DE2413825A patent/DE2413825C2/en not_active Expired
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- 1975-03-17 GB GB1101275A patent/GB1468491A/en not_active Expired
- 1975-03-18 US US05/559,529 patent/US4080384A/en not_active Expired - Lifetime
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- 1975-03-20 IT IT48681/75A patent/IT1032367B/en active
- 1975-03-21 CH CH366975A patent/CH599236A5/xx not_active IP Right Cessation
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NL7503430A (en) | 1975-09-24 |
FR2264816B1 (en) | 1979-02-23 |
CA1045162A (en) | 1978-12-26 |
IT1032367B (en) | 1979-05-30 |
DE2413825A1 (en) | 1975-10-02 |
FR2264816A1 (en) | 1975-10-17 |
GB1468491A (en) | 1977-03-30 |
US4080384A (en) | 1978-03-21 |
BE826972A (en) | 1975-09-22 |
CH599236A5 (en) | 1978-05-31 |
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